Biddle DF Series - Page 28

INSTALLATION COMFORT AIR CURTAIN
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2.8.2 Attaching discharge section
For recessed models (Type DF R) only:
1. Make a hole in the ceiling for the discharge.
Discharge section hole dimensions
2. Attach the two angle sections 1 to the unit along the dis-
charge openings' edges using the screws supplied.
3. Extend the telescopic discharge grille 2 into the unit’s dis-
charge opening until it reaches the required height.
4. Attach the discharge duct to the angle sections 1 using
the screws supplied.
Let op:
c For the unit to work properly, it is essential that
there are sufficient openings in the alcove or ceiling
for air to enter the unit.
B
C
SIZE TYPE DIMENSIONS
a R 90 mm (3 17/32")
b 100-R 970 mm (38 3/16")
150-R 1470 mm (57 7/8")
200-R 1970 mm (77 9/16")
250-R 2470 mm (97 1/4")